CVE-2021-3033: Prisma Cloud Compute: SAML Authentication Bypass Vulnerability in Console

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-02-10 · updated 2026-06-17
Weakness: CWE-347

Description

An improper verification of cryptographic signature vulnerability exists in the Palo Alto Networks Prisma Cloud Compute console. This vulnerability enables an attacker to bypass signature validation during SAML authentication by logging in to the Prisma Cloud Compute console as any authorized user. This issue impacts: All versions of Prisma Cloud Compute 19.11, Prisma Cloud Compute 20.04, and Prisma Cloud Compute 20.09; Prisma Cloud Compute 20.12 before update 1. Prisma Cloud Compute SaaS version is not impacted by this vulnerability.

Affected products

Palo Alto Networks Prisma Cloud Compute: 19.11, 19.11-update_1, 19.11-update_2, 20.04, 20.04-update_1, 20.04-update_2 (+4)
Palo Alto Networks Prisma Cloud Compute: from 19.11 through update 2; from 20.04 through update 2; from 20.09 through update 2; from 20.12 before update 1 — fixed in update 1

How to fix

Upgrade to a fixed version: Palo Alto Networks Prisma Cloud Compute update 1. Check the vendor advisory for mitigations.

References

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